One of my UAS instructors had flown Beverleys. He told a tale of delivering one to Halton as they were being retired. The control yoke is on a shaft that goes into the instrument panel (like most light aircraft), and he and the co-pilot devised a plan that after landing they would hacksaw through the shafts and keep the yokes as souvenirs. They told their mates..... After shutting down, they proceeded to carry out the deed - apparently there were a lot of ‘twanging’ noises as the shaft stubs disappeared into the panel. On reaching whatever office it was, to hand over the F700s, they were passed a signal. It said the aircraft was required back urgently and would be handed over to Halton at a future date....,!